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From b84ce0a1bbe40daa25bda5402e5a4521ac4985af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 1 Mar 2018 11:03:27 +0100
Subject: [PATCH 3662/4131] drm/amdgpu: ignore changes of buffer function
status because of GPU resets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
When we reset the GPU we also disable/enable the SDMA, but we don't want
to change TTM idea of the VRAM size in the middle of that.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming zhou <david1.zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index fa87a00..9fe7999 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1787,7 +1787,7 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
struct ttm_mem_type_manager *man = &adev->mman.bdev.man[TTM_PL_VRAM];
uint64_t size;
- if (!adev->mman.initialized)
+ if (!adev->mman.initialized || adev->in_gpu_reset)
return;
/* this just adjusts TTM size idea, which sets lpfn to the correct value */
--
2.7.4
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